自体颗粒骨椎间植骨融合加椎弓根系统内固定治疗腰椎不稳症
자체과립골추간식골융합가추궁근계통내고정치료요추불은증
Intervertebral disc with inter-body morselized bone and transpedicular screw system internal fixation in the treatment of lumbar spine instability
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